XML 169 R162.htm IDEA: XBRL DOCUMENT v3.19.1

Loans, Financings and Debentures - Additional Information (Detail) $ in Billions		1 Months Ended		12 Months Ended
	May 07, 2019	Jul. 31, 2018 BRL (R$)	Jul. 31, 2018 USD ($)	Dec. 31, 2018 BRL (R$)	Dec. 31, 2017 BRL (R$)	Dec. 31, 2017 USD ($)
Disclosure of detailed information about borrowings [line items]
Minimum aggregate value of obligation				R$ 50,000,000
Maturity	April 15, 2022 to April 15, 2025
Gain or loss on investments					R$ 0
Eurobonds [member]
Disclosure of detailed information about borrowings [line items]
Maturity				2024
Debt in Foreign Currency [member] | Eurobonds [member]
Disclosure of detailed information about borrowings [line items]
Eurobond issued		R$ 1,900,000,000	$ 500.0		R$ 3,200,000,000	$ 1.0
Early repayment of debenture				R$ 1,500,000,000
Interest rate				140.00%
Maturity				2021	2021	2021

X

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2018-01-01
-Paragraph 7
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-URIDate 2018-03-16

+ Details

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Balance Type:	na
Period Type:	instant

X

- Definition

The maturity of borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_7&doctype=Standard
-URIDate 2018-03-16

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X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

Early repayment of debenture.

+ References

No definition available.

+ Details

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Namespace Prefix:	xcmig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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X

- Definition

Euro bonds issued.

+ References

No definition available.

+ Details

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Namespace Prefix:	xcmig_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Gain loss on investments.

+ References

No definition available.

+ Details

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Namespace Prefix:	xcmig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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X

- Definition

Minimum aggregate value of obligation.

+ References

No definition available.

+ Details

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Namespace Prefix:	xcmig_
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X

- Details

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X

- Details

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